Car-door



W. H. McGANN.

CAR DOOR.

APPLICATION FILED SEPT- 2, 1919.

1,343,925. PdtentedJune22,1920.

3 SHEETS-SHEET 1.

I/VVL-NTOF. b WILL/HM H. M 6mm.

w. H. McGANN.

CAR DOOR.

APPLICATION FILED SEPT. 2, I9I9.

1,843,925. Patented June 22, 1920.

5 3 SHEETS-SHEET 2.

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WILLIAM H. M 6mm.

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W. H. McGANN.

| 1m) SEPT. 2, m 1 1,343,925. Patented June 22, 1920 3 SHEETS-SHEET 3.

I] III UNITED STATES PATENToF cs.

WIL A H. mceann, or numerous,- MINNEso'rA.

can-noon. I

To all whom it mayeoncerfl: I a Be it known that I, WI'LLIAM H, MoGAnn,

a citizenlof the United States, residing at My invention relates tocardoors andhas for its object to provide an improved lock and operatingmechanism thereton' Generally stated, the invention consists of thenovel devices and Combinations of devices hereinafter described anddefined in the claims. I a I Particularly, the. invention provides asimple and eflicient means, first -for positively moving the side doorof a freight car; and second, for locking and sealing the sameeither inclosed or in more or less open positions. 1! or the shipment of fruit,grain andvarious other commodities, ventilation within the car is of theutmost importance, and'fOI'gthlS reason, inspectors,.at certain pointsalong thejline, inspect {the cars and determinewhether or. not, the sidedoors mustbe opened slightly to give the desired ventilation. Myinvention provides a very simple. and highly efficient. device "whichineetsall of the conditions incident to the above noted operationandpermits the car door to 'be-locked and sealed invarious different moreor less open positions, as well as in closed position. The inventionalso involves certain other features as will hereinafter appear. 3

The invention is illustrated in the accompanying drawings wherein,likelrcharacters indicate like parts throughout the several views.Referring to the drawings:

Figure 1 is a side elevation showing a freight car body with some partsbroken away, illustrating my invention ap lied to one of the'slidingside doors thereo Fig. 2 is an enlarged side elevation of the lockmechanism and cooperating door,

- pin 23 that is adapted to engage with the moving devices; and

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2.

Of the customary parts of the car, the

numeral 4 indicates the car body, and the numeral 5 one of its sidedoors, which latter is provided at its upper edge with wheel- ISpecification of Lttei'slatent.

travel on an overhea' d rail 7 in the custom- Patented'June22,'1920. Viicat'io filed September 2, i919." SerialNo. 320,988. v

ary way. "The numeral 8 indicates the lower door .hanger brackets, thenumeral 9 the door stop, and the numeral 10 the usual hasp us omary Way,f des ed- [In the application'of my invention, I

fastening that is adapted to be sealed in the provide a rack bar 11which is secured to the outer surface of the side of the carbody,

and extends horizontally thereof along a line considerably above thelowered ge of the door 5. This rack 11 is shown as providedwiththreadedbolts 12 which, at the inner side of the car-body, are e nipped withnuts 13 that seeurely clamp t e said p l a I l rack 1n pos t on. 1* oran important purpose which will presently be noted, this rae madedovetailed in cross section.

Meshing with the rack 11 is a1pinion 14 that works within a housing 15rigidly secured to theifldoor 5 near one edge thereof. This housing 15is preferably clearly set into the door, and the door, at its innerside, is formed with a channel into which is set, and rigidly secured,an internally dove-tailed metal retaining channel 16 rigidly secured byscrews, bolts, rivets, or otherwise, to the ease I hinge of the housing15 and to the door step. 2 Here it maybe noted that the interlockingsliding engagement between the dox' et'ailed rack and the channel 16positively prevents the door from being pried laterally away from thecar'body so as to thereby disengage .the lower-'edge from the doorfromone orbo'th ofthe lower hanger brackets 8., Hitherto, car doors of thiskind have been pried open and goods removed from the car withoutbreaking the car seal. This operation is prevented by the device jusdJeSC ib i-L o a The pinion 14'is rigidly'sec'ured to ashort uprightstem 17 which, at its lower end, and below the case 15, is provided witha head 18 having diametrical perforations 19.

Pivoted at its lower end at 20, the ears 21 on the lower flange 15 ofthe housing 15 is a lock piece 22 which, at its free upper end, isprovided with a loosely projecting lock alinedperforations 19 of thehead 18. The lock'pin 23 has an elongated seal passage 24 thatintersects the perforation 19 upon alined perforation 19 to thereby lockand seal the lock piece or lever 22 in its operative position shown byfull lines in Fig. 3. Ob-

viously, whenthe lock pin 23 is secured in one of the perforations 19,the stem 17 and, hence the pinion 24, will be locked against rotation,thereby locking the pinion to the rack and securing the car door againstsliding movement. Obviously, also, the pin 23 can be engaged with theperforation 19 in either the closed position of the door or,substantially, in a more or less open position of prongs of this forkspring 26 are shown as provided with seal passages 27 to which a carseal may also be inserted if desired.

Frequently, a car door will stick so that it is difficult to start themovement thereof from its closed to its open position, or, conversely,and many car doors have been broken or damaged by the use of a crow baror sledge to effect a sliding movement thereof. WVith this device, a barcan be inserted in one of the perforations 1 9 of the stem head 18 andgreat force can be thus exerted through the pinion and rack topositively move the door without in any way damaging the door. Thedevice designed may be applied to ordinary car door or may beincorporated in new car doors.

hat I claim is: p

1. The combination with a car body hav ing a sliding door, of a racksecured to said car body, a pinion journaled on the car door and meshingwith said rack, said pinion having a stem with a perforated head, a lockpiece mounted on the car door and engageable with the perforated head ofsaid stem to lock said pinion against rotation in different adjustmentsof the door.

2. The combination with a car body having a sliding door, of a barsecured to said car body, and a retaining channel on said door, saidchannel engaging said bar with a sliding but interlocking engagement andholding said door against lateral separation from the car body.

3. The combination with a car body having a sliding door, of a racksecured to said car body, a retaining channel secured to said door andhaving an interlocking sliding engagement with said rack, a pinionjournaled on said door and meshing with said rack, and a lock levercarried by said door and 0perative to lock said pinion against rotationin different adjustments of the door.

4:. The combination with a car body having a sliding door, of a racksecured to said car body, a retaining channel secured to said door andhaving an interlocking sliding engagement with said rack, a pinion journaled on said door and meshing with said rack, and a lock levercarried by said door and operative to lock said pinion against rotationin different adjustments of the door, said lock lever having a lockelement with a seal passage therein whereby it may be locked in anoperative position by an applied seal.

5. The combination with a car body hav ing a sliding door, of a racksecured to said car body, a pinion journaled on said door and meshingwith said rack, said pinion having a stem with intersecting diametricalperforations therein, and a lock lever pivoted to said door and having apro'ecting lock pin insertible through an aline perforation of saidpinion stem, and said lock pin having a seal passage through which andthe perforation of said stem that is alined therewith, a seal may beapplied to secure said lock lever in an operative position.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM H. MoGANN.

